Backported to 2.3.

Backported to 2.3.

(rather than replacing <BLANKLINE> with blank lines in `got`).  This
makes it easier to see what's intended.

  visually distinguish the expected output from the comments (use
  "##" to mark expected outputs, and "#" to mark comments).
- If the string given to DocTestParser.get_program() is indented, then
  strip its indentation.  (In particular, find the min indentation of
  non-blank lines, and strip that indentation from all lines.)

- Added comments for some regexps
- If the traceback type/message don't match, then still print full
  traceback in report_failure (not just the first & last lines)
- Renamed DocTestRunner.__failure_header -> _failure_header

  modify option flags for a single example; they do not turn options
  on or off.)
- Added "indent" and "options" attributes for Example
- Got rid of add_newlines param to DocTestParser._parse_example (it's
  no longer needed; Example's constructor now takes care of it).
- Added some docstrings

  option flags); and use it to define the existing optionflag
  constants.

databases

this should be backported to the release23-maint branch

someone should backport to the release23-maint branch

Fix typo in getquotaroot parameter reported by Thierry FLORAC. Also amplify doc string for select to indicate proper way to obtain other responses.

checkins.  Reapplying the latter changes.

  responsible for parsing the string.
- Renamed Parser to DocTestParser
- DocTestParser.get_*() now accept the string & name as command-line
  arguments; the parser's constructor is now empty.
- Added DocTestParser.get_doctest() method
- Replaced "doctest_factory" argument to DocTestFinder with a "parser"
  argument (takes a DocTestParser).
- Changed _tag_msg to take an indentation string argument.

the set_trace fiddling didn't make sense to me, and I ended up reworking
that part of the code.  We really do want to save and restore
pdb.set_trace, so that each dynamically nested level of doctest gets
sys.stdout fiddled to what's appropriate for *it*.  The only "trick"
really needed is that these layers of set_trace wrappers each call the
original pdb.set_trace (instead of the current pdb.set_trace).

Add missing PyAPI_FUNC/PyAPI_DATA macros.

- wrap a long line

Restore clean building under Cygwin.

to put details in the LaTeX docs instead, and lots of stuff in the
module docstring wasn't useful anyway.

Example.__init__.  The constructor now adds trailing newlines when
needed, and no longer distinguishes between multi- and single-line
cases for source.

more sense as a callable.

rather than a list of triples.

  into their own class, OutputChecker.
- Added optional OutputChecker arguments to DocTestRunner,
  DocTestCase, DocTestSuite.

the string one line at a time.  The resulting code is (in my opinion,
anyway), much easier to read.  In the process, I found and fixed a
bug in the orginal parser's line numbering in error messages (it was
inconsistant between 0-based and 1-based).  Also, check for missing
blank lines after the prompt on all prompt lines, not just PS1 lines
(test added).